SOME ESSEX NATURALISTS 307 was his acquaintance with William Coys that led the latter to experiment with Yeast and its culture. Apparently, Coys did not realise that he was dealing with a plant in making these experiments, but the results were passed to Lobelius, who, in the Adversaria, gives:— "The fullest and most precise directions in the English language for the brewing of the most agreeable and wholesome of all German and English Cerevisia or Beer, that is at once most suitable for use in warm countries, received from the illustrious Mr. William Coys, the highly skilled botanist." Beer, flavoured and preserved with Hops, has not always been the national drink of the English, but was introduced some time between 1520 and 1524. As an old jingle has it :— Hops and turkies, carp and beer Came to England all in a year. Only a few years before Lobelius wrote his book, Andrew Boorde compiled ''A Compendious Regiment or a dyetary of Helth" in which he avers :— ''Ale is made of malte and water; and they the which do put any other thynge to ale than is rehearsed except yest balme or godesgood do sophisticat theyr ale. Ale for an Englyssheman is a natural drinke. Ale must have these propertyes. It must be fresshe and cleare, it must not be ropy or smoky, nor it must have no welte nor tayle. Ale should not be dronke under V days olde. Beer is made of malt, of hoppes and water: It is a naturall drinke for a Dutche man. And now of late dayes it is moche used in England to the detryment of many Englysshe men." According to Moryson's Itinerary, dated 1617, because of the improved methods of brewing advocated by William Coys and others, English beer made from Barley and Hops became 'famous in Netherland, for England yields plenty of Hops'. It was William Coys who first grew in the garden at Stubbers the then newly-imported Ivy-leaved Toadflax, and from whence, during the past three and a half centuries, it has spread over all of southern England.